The FTP file will start with an OPEN statement with the machine name

open vert.synchro.net
bnb xxxxxxx

        Insert repeated commands here, for example changing to a
        favorite directory
cd main
cd pub
cd msdos
get 00_index.txt

        If this is an automated process, you can include the quit command

quit

Depending on what you need down, it can be as simple as that.